In 1854, beautiful, adventurous Rosa Barr travels to the Crimean battlefield with Florence Nightingale's nursing corps--then disappears without a trace. When Mariella Lingwood, Rosa's cousin, leaves her surgeon husband's side to follow the trail of her elusive cousin to Sebastopol, she encounters Rosa's dashing stepbrother, a reckless cavalry officer whose complex past -- and future -- is inextricably...